readme: add notes on per runs (#2410)
readme: add notes on per runs (#2410)

* readme: add notes on per runs
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mixed/lighthouse,tkadlec/lighthouse,GoogleChrome/lighthouse,mixed/lighthouse,deepanjanroy/lighthouse,arturmiz/lighthouse,wardpeet/lighthouse,arturmiz/lighthouse,arturmiz/lighthouse,mixed/lighthouse,deepanjanroy/lighthouse,ev1stensberg/lighthouse,ev1stensberg/lighthouse,GoogleChrome/lighthouse,tkadlec/lighthouse,deepanjanroy/lighthouse,mixed/lighthouse,umaar/lighthouse,wardpeet/lighthouse,GoogleChrome/lighthouse,tkadlec/lighthouse,wardpeet/lighthouse,umaar/lighthouse,deepanjanroy/lighthouse,deepanjanroy/lighthouse,ev1stensberg/lighthouse,wardpeet/lighthouse,ev1stensberg/lighthouse,umaar/lighthouse,GoogleChrome/lighthouse,arturmiz/lighthouse,arturmiz/lighthouse,umaar/lighthouse,wardpeet/lighthouse,GoogleChrome/lighthouse,tkadlec/lighthouse